Ground Plane

In electrical engineering, a ground plane is an electrically conductive surface, usually connected to electrical ground.

Read more about Ground Plane:  Radio Antenna Theory, Printed Circuit Boards

Famous quotes containing the words ground and/or plane:

    Nature herself has not provided the most graceful end for her creatures. What becomes of all these birds that people the air and forest for our solacement? The sparrow seems always chipper, never infirm. We do not see their bodies lie about. Yet there is a tragedy at the end of each one of their lives. They must perish miserably; not one of them is translated. True, “not a sparrow falleth to the ground without our Heavenly Father’s knowledge,” but they do fall, nevertheless.
    Henry David Thoreau (1817–1862)

    As for the dispute about solitude and society, any comparison is impertinent. It is an idling down on the plane at the base of a mountain, instead of climbing steadily to its top.
    Henry David Thoreau (1817–1862)